APA (7. basım) Alıntı

Courant, R., & Robbins, H. E. (1941). What is mathematics?: An elementary aproach to ideas and methods. Oxford University Press.

Chicago Style (17. basım) Atıf

Courant, Richard, ve Herbert Ellis Robbins. What Is Mathematics?: An Elementary Aproach to Ideas and Methods. London: Oxford University Press, 1941.

MLA (9th ed.) Atıf

Courant, Richard, ve Herbert Ellis Robbins. What Is Mathematics?: An Elementary Aproach to Ideas and Methods. Oxford University Press, 1941.